Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a882a62cbcf33d4…

MALICIOUS

PDF

90.3 KB Created: 2021-05-15 23:12:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bda5faec397319a9f793b538b1690302 SHA-1: 75b19b3b8a1e08045a66a33c34143ec2f278ecf0 SHA-256: 9a882a62cbcf33d4ac33b2dddbf60cbe0660539aa5f89f85a48d3994e865ffe5
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a site offering instructions on setting up a network device, likely as a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with phishing or malware distribution. No scripts were extracted, but the presence of external URIs and the high ML score suggest the PDF is designed to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://pelibifir.ru/strik?utm_term=how+to+setup+linksys+wrt120n+as+repeater
    • http://rotukefune.getenjoyment.net/possessivpronomen_arbeitsblatt.pdf
    • https://cdn.sqhk.co/gabadifofibo/jfhiAji/76801394658.pdf
    • http://nalutomabesuso.iblogger.org/how_to_buy_ddp_yoga.pdf
    • http://wadixokup.22web.org/initiate_coverage_report.pdf
    • https://cdn.sqhk.co/sizebadit/ghiijcg/glitch_effect_photoshop_action_free.pdf
    • http://nebofimanigi.sportsontheweb.net/what_is_the_best_represent_the_scrum_approach_to_planning.pdf
    • http://fumuroruzej.medianewsonline.com/kp_system_astrology_in_tamil.pdf
    • https://cdn.sqhk.co/gukokefa/jfhbhhf/52462590622.pdf
    • https://cdn.sqhk.co/gobuwovuv/Lic5sOP/bogositenodebikeje.pdf
    • https://cdn.sqhk.co/puvubuzu/lG2hifM/adjust_keyboard_macbook.pdf
    • https://cdn.sqhk.co/dawadetugas/4mpjjjj/piano_video_lessons_free_download.pdf
    • http://towufato.mywebcommunity.org/fekedawipu.pdf
    • http://tadezutalowebe.22web.org/powered_by_the_apocalypse_monster_of_the_week.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rurovikejigibu/vortech_mp40_wet_side_for_sale.pdf
    • https://s3.amazonaws.com/nuvukivaxiren/sevobopafenik.pdf
    • http://tipopetudigovib.epizy.com/xakosaleferapal.pdf
    • https://s3.amazonaws.com/lixuzo/media_exposure_definition_government.pdf
    • https://s3.amazonaws.com/sajatofubote/barbie_birthday_cake_images.pdf
    • http://kekabipiji.rf.gd/belajar_scale_gitar.pdf
    • http://dimakadube.epizy.com/bsf_international_prayer_guide.pdf
    • http://litofafowiralo.epizy.com/vutakizi.pdf
    • http://supisaminuwon.rf.gd/rainbird_5000_nozzle_guide.pdf
    • http://baligejot.epizy.com/basin_street_blues_bb.pdf
    • http://redifigikutusoj.myartsonline.com/gk_question_answer_in_english_download.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011582.bin
061767420d3e3c69456019679cc2f7ea029cddea6d004f2502974b277bf007b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x11582 5356 bytes
font_01_sfnt_off000127df.bin
379b4d03cb3cde67d9630049157878efb63fcda5c96608d325ce559c40b45741
pdf-font-stream PDF embedded font (sfnt) at offset 0x127DF 22080 bytes